New York Times: Its hard not to pay outsize attention to the parts of big pictures that resonate most with ones sensibilities. Ive frequently pointed out the great work of what I once called Generation E young people working energetically to foster social and environmental progress. The most rewarding aspect of teaching is enabling this kind of engagement (a process that, at its best, is mainly stepping out of the way). Bernie Sanders rode a youth wave. Hillary Clintons presidential prospects could well...